期刊
RARE METALS
卷 27, 期 3, 页码 223-227出版社
NONFERROUS METALS SOC CHINA
DOI: 10.1016/S1001-0521(08)60119-9
关键词
modified activated carbon; adsorption; red mud; scandium
Activated carbon (AC) was modified by tri-butyl phosphate (TBP) for selectively extracting scandium, from red mud and characterized by BET (Brunauer-Emmett-Teller) surface area. The modified AC had a preferential adsorption to scandium. The influences of adsorbent dosage, adsorption temperature, and time on adsorption capacity and selectivity to scandium were examined. An optimum adsorbent dosage (similar to 6.25 g/L), adsorption temperature (308 K), and adsorption time (40 min) were figured out. A pseudo-second-order kinetics model was employed for describing the adsorption process of scandium.
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